Symptoms

• Expected messages never arrive
• New mail appears on one device but not another
• The inbox has stopped updating

Possible Causes

• Inbox storage is full
• A filter or rule moved the message
• Email syncing is disabled
• The sender used an incorrect address

Step-by-Step Repair

1. Check your internet connection and refresh the inbox.
2. Search All Mail, Spam, Trash, and any filtered folders.
3. Check storage limits and delete unneeded messages or attachments.
4. Review inbox rules and blocked sender settings.
5. Ask the sender to confirm the address and send the message again.

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